Elsa A. van Wassenaer

ORCID: 0000-0003-3149-953X
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About
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Research Areas
  • Inflammatory Bowel Disease
  • Microscopic Colitis
  • Intestinal Malrotation and Obstruction Disorders
  • Immunodeficiency and Autoimmune Disorders
  • Helicobacter pylori-related gastroenterology studies
  • Gastrointestinal disorders and treatments
  • Appendicitis Diagnosis and Management
  • Radiology practices and education
  • Ultrasound in Clinical Applications
  • Gastrointestinal motility and disorders
  • Hidradenitis Suppurativa and Treatments
  • Uterine Myomas and Treatments
  • Endometriosis Research and Treatment
  • Radiation Dose and Imaging
  • Gastroesophageal reflux and treatments
  • Pediatric Pain Management Techniques
  • Helminth infection and control
  • Diagnosis and treatment of tuberculosis
  • Eosinophilic Esophagitis
  • Colorectal and Anal Carcinomas
  • Pharmaceutical studies and practices
  • Acute Lymphoblastic Leukemia research
  • Pregnancy and Medication Impact

Emma Kinderziekenhuis
2018-2023

Amsterdam University Medical Centers
2019-2023

University of Amsterdam
2019-2023

Amsterdam UMC Location University of Amsterdam
2018

Objectives: Currently, there is no consensus on how to score Crohn disease (CD) activity assessed by intestinal ultrasound (IUS) in children. This study aimed design an easy-to-use IUS for pediatric CD. Methods: Children undergoing ileo-colonoscopy CD assessment underwent the day before ileo-colonoscopy, with simple endoscopic (SES-CD). features were compared SES-CD segmental level. Multiple regression analyses, separately terminal ileum (TI) and colon, done assess predictors of develop a...

10.1097/mpg.0000000000003727 article EN cc-by Journal of Pediatric Gastroenterology and Nutrition 2023-02-07

Intestinal ultrasound (IUS) is an emerging modality in monitoring disease activity ulcerative colitis (UC). Here, we aimed to identify early IUS predictors of treatment response as evaluated by endoscopy and assessed the kinetics changes.This prospective, longitudinal study included UC patients with endoscopic (endoscopic Mayo score [EMS] ≥2) starting anti-inflammatory treatment. Clinical scores, biochemical parameters were at baseline (W0), week 2 (W2), W6(W6), time second (W8-W26). Per...

10.1093/ibd/izad274 article EN cc-by Inflammatory Bowel Diseases 2023-11-27

Abstract Background There is currently no consensus on the definition of an abnormal intestinal ultrasound (IUS) for children with ulcerative colitis (UC). This cross-sectional study aimed to externally validate and compare 2 existing IUS indices in UC. Methods Children undergoing colonoscopy UC assessment underwent day before colonoscopy, assessed Mayo endoscopic subscore. The UC-IUS index Civitelli were compared score ascending, transverse, descending colon. area under receiver-operating...

10.1093/ibd/izac197 article EN cc-by-nc Inflammatory Bowel Diseases 2022-09-23

ABSTRACT Objectives: Training healthcare physicians to perform intestinal ultrasound (IUS) during outpatient visits with equal accuracy as radiologists could improve clinical management of IBD patients. We aimed assess whether a healthcare‐physician can be trained IUS, compared experienced in children iBD, and inter‐observer agreement. Methods: Consecutive children, 6 18 years or suspicion IBD, who underwent ileo‐colonoscopy were enrolled. iUS was performed independently by radiologist 1...

10.1097/mpg.0000000000003442 article EN cc-by Journal of Pediatric Gastroenterology and Nutrition 2022-03-08

Infusion reactions (IR) are commonly described side effects of infliximab (IFX) infusions, often leading to discontinuation IFX. This study aimed investigate the influence steroid premedication (PM) on incidence IR in pediatric inflammatory bowel disease (PIBD) patients receiving IFX.A case-control two tertiary centers Amsterdam, The Netherlands, including PIBD PM with steroids was part standard care one center (PM+) but not other (PM-). Acute were divided into mild/severe and grade 1/2/3/4...

10.1007/s00228-019-02715-z article EN cc-by European Journal of Clinical Pharmacology 2019-07-22

Background: Fecal calprotectin (FC) is a biomarker for inflammation in inflammatory bowel disease (IBD). Interpretation of results can be complicated because the use different assays to determine FC. Goals: To assess agreement between 2 determining FC patients with IBD. Methods: Samples from adults and children IBD were tested assays: (1) EliA Calprotectin (2) EK-Cal. uniformly on same day. Interassay variability was displayed Bland-Altman plot. The difference categorization result (1: 0 250...

10.1097/mcg.0000000000001460 article EN cc-by-nc-nd Journal of Clinical Gastroenterology 2020-10-27

In recent years as a result of decreasing prices and the increasing availability portable systems, ultrasonography (US), which historically has primarily been domain radiologists, become more widely available to non-radiologists well. This increased use point-of-care paediatric US performed by non-radiologists. With this scoping review, focused on abdominal imaging, we aim gain an overview current practices in setting assess its impact daily practice. We present background study design...

10.1007/s00247-019-04452-y article EN cc-by Pediatric Radiology 2019-08-27
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